IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 569  577 of 929
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Question number: 569
Question
If then the value of is ________.
Choices
Choice (4)  Response  

a. 


b.  1 

c. 


d.  1 

Question number: 570
Question
If , then the value of x is________.
Choices
Choice (4)  Response  

a.  2 

b.  6 

c.  4 

d.  8 

Question number: 571
Question
and then x = ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 572
Question
The difference between a discount of on Rs. 1000 and two successive discounts of on the same amount is ________
Choices
Choice (4)  Response  

a.  Rs. 22 

b.  Rs. 17.20 

c.  Rs. 18.40 

d.  Rs. 14.56 

Question number: 573
Question
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 574
Question
Find the remainder when is divided by .
Choices
Choice (4)  Response  

a.  3 

b.  3 

c.  2 

d.  2 

Question number: 575
Question
If the mean of 20 observations is 25 and that of another 5 observations is 14, then the mean of 25 observations is ________
Choices
Choice (4)  Response  

a.  15 

b.  22 

c.  22.8 

d.  15.5 

Question number: 576
Question
If and , then value of is________.
Choices
Choice (4)  Response  

a.  1890 

b.  1895 

c.  1880 

d.  1885 

Question number: 577
Question
A man purchases an blander whose printed price is Rs. 2200. If he received two successive discounts of and, he paid________
Choices
Choice (4)  Response  

a.  Rs. 1221 

b.  Rs. 1232 

c.  Rs. 1121 

d.  Rs. 1132 
